| 1 | /** $Id: tstInt.cpp 14515 2008-11-24 12:33:00Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * Testcase: Test the interrupt gate feature of the support library.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.alldomusa.eu.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | *
|
|---|
| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 28 | * additional information or have any questions.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 32 | /*******************************************************************************
|
|---|
| 33 | * Header Files *
|
|---|
| 34 | *******************************************************************************/
|
|---|
| 35 | #include <VBox/sup.h>
|
|---|
| 36 | #include <VBox/vm.h>
|
|---|
| 37 | #include <VBox/vmm.h>
|
|---|
| 38 | #include <VBox/err.h>
|
|---|
| 39 | #include <VBox/param.h>
|
|---|
| 40 | #include <iprt/runtime.h>
|
|---|
| 41 | #include <iprt/stream.h>
|
|---|
| 42 | #include <iprt/string.h>
|
|---|
| 43 |
|
|---|
| 44 |
|
|---|
| 45 | /**
|
|---|
| 46 | * Makes a path to a file in the executable directory.
|
|---|
| 47 | */
|
|---|
| 48 | static char *ExeDirFile(char *pszFile, const char *pszArgv0, const char *pszFilename)
|
|---|
| 49 | {
|
|---|
| 50 | char *psz;
|
|---|
| 51 | char *psz2;
|
|---|
| 52 |
|
|---|
| 53 | strcpy(pszFile, pszArgv0);
|
|---|
| 54 | psz = strrchr(pszFile, '/');
|
|---|
| 55 | psz2 = strrchr(pszFile, '\\');
|
|---|
| 56 | if (psz < psz2)
|
|---|
| 57 | psz = psz2;
|
|---|
| 58 | if (!psz)
|
|---|
| 59 | psz = strrchr(pszFile, ':');
|
|---|
| 60 | if (!psz)
|
|---|
| 61 | {
|
|---|
| 62 | strcpy(pszFile, "./");
|
|---|
| 63 | psz = &pszFile[1];
|
|---|
| 64 | }
|
|---|
| 65 | strcpy(psz + 1, "VMMR0.r0");
|
|---|
| 66 | return pszFile;
|
|---|
| 67 | }
|
|---|
| 68 |
|
|---|
| 69 | int main(int argc, char **argv)
|
|---|
| 70 | {
|
|---|
| 71 | int rcRet = 0;
|
|---|
| 72 | int i;
|
|---|
| 73 | int rc;
|
|---|
| 74 | int cIterations = argc > 1 ? RTStrToUInt32(argv[1]) : 32;
|
|---|
| 75 | if (cIterations == 0)
|
|---|
| 76 | cIterations = 64;
|
|---|
| 77 |
|
|---|
| 78 | /*
|
|---|
| 79 | * Init.
|
|---|
| 80 | */
|
|---|
| 81 | RTR3Init();
|
|---|
| 82 | PSUPDRVSESSION pSession;
|
|---|
| 83 | rc = SUPR3Init(&pSession);
|
|---|
| 84 | rcRet += rc != 0;
|
|---|
| 85 | RTPrintf("tstInt: SUPR3Init -> rc=%Rrc\n", rc);
|
|---|
| 86 | if (!rc)
|
|---|
| 87 | {
|
|---|
| 88 | /*
|
|---|
| 89 | * Load VMM code.
|
|---|
| 90 | */
|
|---|
| 91 | char szFile[RTPATH_MAX];
|
|---|
| 92 | rc = SUPLoadVMM(ExeDirFile(szFile, argv[0], "VMMR0.r0"));
|
|---|
| 93 | if (!rc)
|
|---|
| 94 | {
|
|---|
| 95 | /*
|
|---|
| 96 | * Create a fake 'VM'.
|
|---|
| 97 | */
|
|---|
| 98 | PVMR0 pVMR0 = NIL_RTR0PTR;
|
|---|
| 99 | PVM pVM = NULL;
|
|---|
| 100 | const unsigned cPages = RT_ALIGN_Z(sizeof(*pVM), PAGE_SIZE) >> PAGE_SHIFT;
|
|---|
| 101 | PSUPPAGE paPages = (PSUPPAGE)RTMemAllocZ(cPages * sizeof(SUPPAGE));
|
|---|
| 102 | if (paPages)
|
|---|
| 103 | rc = SUPLowAlloc(cPages, (void **)&pVM, &pVMR0, &paPages[0]);
|
|---|
| 104 | else
|
|---|
| 105 | rc = VERR_NO_MEMORY;
|
|---|
| 106 | if (RT_SUCCESS(rc))
|
|---|
| 107 | {
|
|---|
| 108 | pVM->pVMRC = 0;
|
|---|
| 109 | pVM->pVMR3 = pVM;
|
|---|
| 110 | pVM->pVMR0 = pVMR0;
|
|---|
| 111 | pVM->paVMPagesR3 = paPages;
|
|---|
| 112 | pVM->pSession = pSession;
|
|---|
| 113 | pVM->enmVMState = VMSTATE_CREATED;
|
|---|
| 114 |
|
|---|
| 115 | rc = SUPSetVMForFastIOCtl(pVMR0);
|
|---|
| 116 | if (!rc)
|
|---|
| 117 | {
|
|---|
| 118 |
|
|---|
| 119 | /*
|
|---|
| 120 | * Call VMM code with invalid function.
|
|---|
| 121 | */
|
|---|
| 122 | for (i = cIterations; i > 0; i--)
|
|---|
| 123 | {
|
|---|
| 124 | rc = SUPCallVMMR0(pVMR0, VMMR0_DO_SLOW_NOP, NULL);
|
|---|
| 125 | if (rc != VINF_SUCCESS)
|
|---|
| 126 | {
|
|---|
| 127 | RTPrintf("tstInt: SUPCallVMMR0 -> rc=%Rrc i=%d Expected VINF_SUCCESS!\n", rc, i);
|
|---|
| 128 | rcRet++;
|
|---|
| 129 | break;
|
|---|
| 130 | }
|
|---|
| 131 | }
|
|---|
| 132 | RTPrintf("tstInt: Performed SUPCallVMMR0 %d times (rc=%Rrc)\n", cIterations, rc);
|
|---|
| 133 |
|
|---|
| 134 | /*
|
|---|
| 135 | * The fast path.
|
|---|
| 136 | */
|
|---|
| 137 | if (rc == VINF_SUCCESS)
|
|---|
| 138 | {
|
|---|
| 139 | RTTimeNanoTS();
|
|---|
| 140 | uint64_t StartTS = RTTimeNanoTS();
|
|---|
| 141 | uint64_t StartTick = ASMReadTSC();
|
|---|
| 142 | uint64_t MinTicks = UINT64_MAX;
|
|---|
| 143 | for (i = 0; i < 1000000; i++)
|
|---|
| 144 | {
|
|---|
| 145 | uint64_t OneStartTick = ASMReadTSC();
|
|---|
| 146 | rc = SUPCallVMMR0Fast(pVMR0, VMMR0_DO_NOP, 0);
|
|---|
| 147 | uint64_t Ticks = ASMReadTSC() - OneStartTick;
|
|---|
| 148 | if (Ticks < MinTicks)
|
|---|
| 149 | MinTicks = Ticks;
|
|---|
| 150 |
|
|---|
| 151 | if (RT_UNLIKELY(rc != VINF_SUCCESS))
|
|---|
| 152 | {
|
|---|
| 153 | RTPrintf("tstInt: SUPCallVMMR0Fast -> rc=%Rrc i=%d Expected VINF_SUCCESS!\n", rc, i);
|
|---|
| 154 | rcRet++;
|
|---|
| 155 | break;
|
|---|
| 156 | }
|
|---|
| 157 | }
|
|---|
| 158 | uint64_t Ticks = ASMReadTSC() - StartTick;
|
|---|
| 159 | uint64_t NanoSecs = RTTimeNanoTS() - StartTS;
|
|---|
| 160 |
|
|---|
| 161 | RTPrintf("tstInt: SUPCallVMMR0Fast - %d iterations in %llu ns / %llu ticks. %llu ns / %#llu ticks per iteration. Min %llu ticks.\n",
|
|---|
| 162 | i, NanoSecs, Ticks, NanoSecs / i, Ticks / i, MinTicks);
|
|---|
| 163 |
|
|---|
| 164 | /*
|
|---|
| 165 | * The ordinary path.
|
|---|
| 166 | */
|
|---|
| 167 | RTTimeNanoTS();
|
|---|
| 168 | StartTS = RTTimeNanoTS();
|
|---|
| 169 | StartTick = ASMReadTSC();
|
|---|
| 170 | MinTicks = UINT64_MAX;
|
|---|
| 171 | for (i = 0; i < 1000000; i++)
|
|---|
| 172 | {
|
|---|
| 173 | uint64_t OneStartTick = ASMReadTSC();
|
|---|
| 174 | rc = SUPCallVMMR0Ex(pVMR0, VMMR0_DO_SLOW_NOP, 0, NULL);
|
|---|
| 175 | uint64_t Ticks = ASMReadTSC() - OneStartTick;
|
|---|
| 176 | if (Ticks < MinTicks)
|
|---|
| 177 | MinTicks = Ticks;
|
|---|
| 178 |
|
|---|
| 179 | if (RT_UNLIKELY(rc != VINF_SUCCESS))
|
|---|
| 180 | {
|
|---|
| 181 | RTPrintf("tstInt: SUPCallVMMR0Ex -> rc=%Rrc i=%d Expected VINF_SUCCESS!\n", rc, i);
|
|---|
| 182 | rcRet++;
|
|---|
| 183 | break;
|
|---|
| 184 | }
|
|---|
| 185 | }
|
|---|
| 186 | Ticks = ASMReadTSC() - StartTick;
|
|---|
| 187 | NanoSecs = RTTimeNanoTS() - StartTS;
|
|---|
| 188 |
|
|---|
| 189 | RTPrintf("tstInt: SUPCallVMMR0Ex - %d iterations in %llu ns / %llu ticks. %llu ns / %#llu ticks per iteration. Min %llu ticks.\n",
|
|---|
| 190 | i, NanoSecs, Ticks, NanoSecs / i, Ticks / i, MinTicks);
|
|---|
| 191 | }
|
|---|
| 192 | }
|
|---|
| 193 | else
|
|---|
| 194 | {
|
|---|
| 195 | RTPrintf("tstInt: SUPSetVMForFastIOCtl failed: %Rrc\n", rc);
|
|---|
| 196 | rcRet++;
|
|---|
| 197 | }
|
|---|
| 198 | }
|
|---|
| 199 | else
|
|---|
| 200 | {
|
|---|
| 201 | RTPrintf("tstInt: SUPContAlloc2(%#zx,,) failed\n", sizeof(*pVM));
|
|---|
| 202 | rcRet++;
|
|---|
| 203 | }
|
|---|
| 204 |
|
|---|
| 205 | /*
|
|---|
| 206 | * Unload VMM.
|
|---|
| 207 | */
|
|---|
| 208 | rc = SUPUnloadVMM();
|
|---|
| 209 | if (rc)
|
|---|
| 210 | {
|
|---|
| 211 | RTPrintf("tstInt: SUPUnloadVMM failed with rc=%Rrc\n", rc);
|
|---|
| 212 | rcRet++;
|
|---|
| 213 | }
|
|---|
| 214 | }
|
|---|
| 215 | else
|
|---|
| 216 | {
|
|---|
| 217 | RTPrintf("tstInt: SUPLoadVMM failed with rc=%Rrc\n", rc);
|
|---|
| 218 | rcRet++;
|
|---|
| 219 | }
|
|---|
| 220 |
|
|---|
| 221 | /*
|
|---|
| 222 | * Terminate.
|
|---|
| 223 | */
|
|---|
| 224 | rc = SUPTerm();
|
|---|
| 225 | rcRet += rc != 0;
|
|---|
| 226 | RTPrintf("tstInt: SUPTerm -> rc=%Rrc\n", rc);
|
|---|
| 227 | }
|
|---|
| 228 |
|
|---|
| 229 | return !!rc;
|
|---|
| 230 | }
|
|---|
| 231 |
|
|---|
